{
  "manageEntity": {
    "action": "Create",
    "entityId": "1844453164",
    "entityType": "Playlist",
    "metadata": "{\"cid\":\"\",\"data\":{\"playlist_id\":1844453164,\"description\":\"\",\"playlist_name\":\"New Playlist\",\"is_private\":true,\"ddex_release_ids\":null,\"ddex_app\":\"\",\"upc\":\"\",\"artists\":null,\"copyright_line\":null,\"producer_copyright_line\":null,\"is_image_autogenerated\":false,\"playlist_contents\":[]}}",
    "nonce": "0x2529325f1bbb7a89db5a9f1e2c15e56d01e66db9bfbb7ccc8b747d9aeb4ec436",
    "signature": "0xb61587bc17fd79bf762d523bcd160bf1be27bd91566aa50e96ee0959e18c545414def2a8e5227c41f5c9f992cb2c0d306f0689f5f642481c47f483a5af0862be1c",
    "signer": "0x4219eDC185d97988b2570653ECa05BAeFf091335",
    "userId": "319892282"
  }
}